2 * Header file for libcitadel
4 * Copyright (c) 1987-2012 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
16 /* protect against double includes */
22 * since we reference time_t...
27 #include <arpa/inet.h>
28 #include <sys/types.h>
29 #include <netinet/in.h>
31 #define LIBCITADEL_VERSION_NUMBER 810
34 * Here's a bunch of stupid magic to make the MIME parser portable.
41 typedef enum AXLevel {
54 lastsent, /* Server internal use only */
64 enum GNET_POP3_PARTS { /* pop3client splits into these columns: */
68 GNET_POP3_DONT_DELETE_REMOTE = 4,
69 GNET_POP3_INTERVAL = 5
72 enum GNET_PUSH_SHARE { /* ignet_push_share splits into these columns: */
77 typedef enum __GPEXWhichPolicy {
87 * Note that not all views are implemented in all clients.
89 typedef enum _room_views {
90 VIEW_BBS = 0, /* Bulletin board view */
91 VIEW_MAILBOX = 1, /* Mailbox summary */
92 VIEW_ADDRESSBOOK = 2, /* Address book view */
93 VIEW_CALENDAR = 3, /* Calendar view */
94 VIEW_TASKS = 4, /* Tasks view */
95 VIEW_NOTES = 5, /* Notes view */
96 VIEW_WIKI = 6, /* Wiki view */
97 VIEW_CALBRIEF = 7, /* Brief Calendar view */
98 VIEW_JOURNAL = 8, /* Journal view */
99 VIEW_DRAFTS = 9, /* Drafts view */
100 VIEW_BLOG = 10, /* Blog view */
101 VIEW_QUEUE = 11, /* SMTP/... QUEUE rooms */
105 #define BLOG_EUIDBUF_SIZE 40
108 #define IsEmptyStr(a) ((a)[0] == '\0')
113 * another word to indicate n/a for a pointer if NULL already has a "meaning"
115 extern const char *StrBufNOTNULL;
121 char *libcitadel_version_string(void);
122 int libcitadel_version_number(void);
123 void StartLibCitadel(size_t basesize);
124 void ShutDownLibCitadel(void);
127 * MIME parser declarations
130 long extract_key(char *target, char *source, long sourcelen, char *key, long keylen, char KeyEnd);
133 typedef void (*MimeParserCallBackType)(char *cbname,
145 void mime_parser(char *content_start, char *content_end,
146 MimeParserCallBackType CallBack,
147 MimeParserCallBackType PreMultiPartCallBack,
148 MimeParserCallBackType PostMultiPartCallBack,
154 char *fixed_partnum(char *);
155 void mime_decode(char *partnum,
156 char *part_start, size_t length,
157 char *content_type, char *charset, char *encoding,
160 char *name, char *filename,
161 MimeParserCallBackType CallBack,
162 MimeParserCallBackType PreMultiPartCallBack,
163 MimeParserCallBackType PostMultiPartCallBack,
166 int mime_decode_now (char *part_start,
170 size_t *bytes_decoded);
171 void the_mime_parser(char *partnum,
172 char *content_start, char *content_end,
173 MimeParserCallBackType CallBack,
174 MimeParserCallBackType PreMultiPartCallBack,
175 MimeParserCallBackType PostMultiPartCallBack,
179 typedef struct StrBuf StrBuf;
182 #define CStrOf(a) #a, sizeof(#a) - 1
183 typedef struct _ConstStr {
187 #define CKEY(a) (a).Key, (a).len
189 StrBuf* NewStrBuf(void);
190 StrBuf* NewStrBufDup(const StrBuf *CopyMe);
191 StrBuf* NewStrBufPlain(const char* ptr, int nChars);
192 long StrBufShrinkToFit(StrBuf *Buf, int Force);
193 void ReAdjustEmptyBuf(StrBuf *Buf, long ThreshHold, long NewSize);
194 void NewStrBufDupAppendFlush(StrBuf **CreateRelpaceMe, StrBuf *CopyFlushMe, const char *NoMe, int KeepOriginal);
196 int StrBufPlain(StrBuf *Buf, const char* ptr, int nChars);
197 StrBuf* _NewConstStrBuf(const char* StringConstant, size_t SizeOfStrConstant);
198 #define NewConstStrBuf(a) _NewConstStrBuf(a, sizeof(a))
199 void FreeStrBuf (StrBuf **FreeMe);
200 char *SmashStrBuf (StrBuf **SmashMe);
201 void HFreeStrBuf (void *VFreeMe);
202 int FlushStrBuf(StrBuf *buf);
203 int FLUSHStrBuf(StrBuf *buf); /* expensive but doesn't leave content behind for others to find in case of errors */
205 const char *ChrPtr(const StrBuf *Str);
206 int StrLength(const StrBuf *Str);
207 #define SKEY(a) ChrPtr(a), StrLength(a)
208 long StrBufPeek(StrBuf *Buf, const char* ptr, long nThChar, char PeekValue);
209 long StrBufPook(StrBuf *Buf, const char* ptr, long nThChar, long nChars, char PookValue);
211 int StrBufTCP_read_line(StrBuf *buf, int *fd, int append, const char **Error);
212 int StrBufReadBLOB(StrBuf *Buf, int *fd, int append, long nBytes, const char **Error);
215 int StrBufReadBLOBBuffered(StrBuf *Buf,
223 int StrBufTCP_read_buffered_line(StrBuf *Line,
227 int selectresolution,
229 int StrBufTCP_read_buffered_line_fast(StrBuf *Line,
234 int selectresolution,
237 typedef enum _eReadState {
244 typedef struct _file_buffer {
246 const char *ReadWritePointer;
249 int nBlobBytesWanted;
253 typedef struct __fd_iobuffer {
258 long TotalSentAlready;
260 long ChunkSendRemain;
261 StrBuf *ChunkBuffer; /* just used if we don't have sendfile */
265 void FDIOBufferInit(FDIOBuffer *FDB, IOBuffer *IO, int FD, long TotalSendSize);
266 void FDIOBufferDelete(FDIOBuffer *FDB);
267 int FileSendChunked(FDIOBuffer *FDB, const char **Err);
268 int FileRecvChunked(FDIOBuffer *FDB, const char **Err);
269 eReadState WriteIOBAlreadyRead(FDIOBuffer *FDB, const char **Error);
271 long StrBuf_read_one_chunk_callback (int fd, short event, IOBuffer *FB);
272 int StrBuf_write_one_chunk_callback(int fd, short event, IOBuffer *FB);
274 eReadState StrBufChunkSipLine(StrBuf *LineBuf, IOBuffer *FB);
275 eReadState StrBufCheckBuffer(IOBuffer *FB);
276 long IOBufferStrLength(IOBuffer *FB);
278 int StrBufSipLine(StrBuf *LineBuf, const StrBuf *Buf, const char **Ptr);
279 int StrBufReplaceToken(StrBuf *Buf, long where, long HowLong, const char *Repl, long ReplLen);
280 int StrBufExtract_token(StrBuf *dest, const StrBuf *Source, int parmnum, char separator);
281 int StrBufSub(StrBuf *dest, const StrBuf *Source, unsigned long Offset, size_t nChars);
283 unsigned long StrBufExtract_unsigned_long(const StrBuf* Source, int parmnum, char separator);
284 long StrBufExtract_long(const StrBuf* Source, int parmnum, char separator);
285 int StrBufExtract_int(const StrBuf* Source, int parmnum, char separator);
286 int StrBufNum_tokens(const StrBuf *source, char tok);
287 int StrBufRemove_token(StrBuf *Source, int parmnum, char separator);
289 int StrBufHaveNextToken(const StrBuf *Source, const char **pStart);
290 int StrBufExtract_NextToken(StrBuf *dest, const StrBuf *Source, const char **pStart, char separator);
291 int StrBufSkip_NTokenS(const StrBuf *Source, const char **pStart, char separator, int nTokens);
292 unsigned long StrBufExtractNext_unsigned_long(const StrBuf* Source, const char **pStart, char separator);
293 long StrBufExtractNext_long(const StrBuf* Source, const char **pStart, char separator);
294 int StrBufExtractNext_int(const StrBuf* Source, const char **pStart, char separator);
297 void StrBufAppendBufPlain(StrBuf *Buf, const char *AppendBuf, long AppendSize, unsigned long Offset);
298 void StrBufAppendBuf(StrBuf *Buf, const StrBuf *AppendBuf, unsigned long Offset);
299 size_t CurlFillStrBuf_callback(void *ptr, size_t size, size_t nmemb, void *stream);
300 void StrBufAppendPrintf(StrBuf *Buf, const char *format, ...);
301 #ifdef SHOW_ME_VAPPEND_PRINTF
302 /* so owe don't create an include depndency, this is just visible on demand. */
303 void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap);
305 void StrBufPrintf(StrBuf *Buf, const char *format, ...) __attribute__((__format__(__printf__,2,3)));
306 void StrBufCutLeft(StrBuf *Buf, int nChars);
307 void StrBufCutRight(StrBuf *Buf, int nChars);
308 void StrBufCutAt(StrBuf *Buf, int AfternChars, const char *At);
309 void StrBufTrim(StrBuf *Buf);
310 void StrBufSpaceToBlank(StrBuf *Buf);
311 void StrBufStripAllBut(StrBuf *Buf, char leftboundary, char rightboundary);
312 void StrBufUpCase(StrBuf *Buf);
313 void StrBufLowerCase(StrBuf *Buf);
314 void StrBufStripSlashes(StrBuf *Dir, int RemoveTrailingSlash);
315 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source);
316 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source);
318 void StrBufToUnixLF(StrBuf *buf);
319 void StrBufReplaceChars(StrBuf *buf, char search, char replace);
321 int CompressBuffer(StrBuf *Buf);
322 void StrBufConvert(StrBuf *ConvertBuf, StrBuf *TmpBuf, void *pic);
323 void ctdl_iconv_open(const char *tocode, const char *fromcode, void *pic);
324 void StrBuf_RFC822_2_Utf8(StrBuf *Target,
325 const StrBuf *DecodeMe,
326 const StrBuf* DefaultCharset,
327 StrBuf *FoundCharset,
329 StrBuf *ConvertBuf2);
330 /* deprecated old version: */
331 void StrBuf_RFC822_to_Utf8(StrBuf *Target, const StrBuf *DecodeMe, const StrBuf* DefaultCharset, StrBuf *FoundCharset);
333 int StrBufDecodeBase64(StrBuf *Buf);
334 int StrBufDecodeHex(StrBuf *Buf);
335 int StrBufRFC2047encode(StrBuf **target, const StrBuf *source);
336 StrBuf *StrBufSanitizeEmailRecipientVector(const StrBuf *Recp,
338 StrBuf *EmailAddress,
340 int StrBufSanitizeAscii(StrBuf *Buf, const char Mute);
341 #define LB (1) /* Internal escape chars */
344 void StrBufUrlescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn);
345 void StrBufHexescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn);
346 void StrBufHexEscAppend(StrBuf *OutBuf, const StrBuf *In, const unsigned char *PlainIn, long PlainInLen);
347 long StrEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks);
348 long StrECMAEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
349 long StrHtmlEcmaEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks);
350 void StrMsgEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
351 void StrIcalEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
353 long StrTol(const StrBuf *Buf);
354 int StrToi(const StrBuf *Buf);
355 int StrBufIsNumber(const StrBuf *Buf);
356 long StrBuf_Utf8StrLen(StrBuf *Buf);
357 long StrBuf_Utf8StrCut(StrBuf *Buf, int maxlen);
359 const char *GuessMimeType(const char *data, size_t dlen);
360 const char* GuessMimeByFilename(const char *what, size_t len);
362 /* Run once at Programstart */
363 int LoadIconDir(const char *DirName);
365 /* Select the icon for a given MIME type */
366 const char *GetIconFilename(char *MimeType, size_t len);
369 /* URL parsing & connection data */
370 typedef struct ParsedURL ParsedURL;
373 StrBuf *UrlWithoutCred;
379 const char *LocalPart;
380 const char *PlainUrl;
384 struct hostent *HEnt;
385 struct sockaddr_in6 Addr;
389 void FreeURL(ParsedURL** Url);
390 int ParseURL(ParsedURL **Url, StrBuf *UrlStr, unsigned short DefaultPort);
391 void CurlPrepareURL(ParsedURL *Url);
396 int safestrncpy(char *dest, const char *src, size_t n);
397 int num_tokens (const char *source, char tok);
398 long extract_token(char *dest, const char *source, int parmnum, char separator, int maxlen);
399 long grab_token(char **dest, const char *source, int parmnum, char separator);
400 int extract_int (const char *source, int parmnum);
401 long extract_long (const char *source, int parmnum);
402 unsigned long extract_unsigned_long(const char *source, int parmnum);
403 void CtdlInitBase64Table(void);
404 size_t CtdlEncodeBase64(char *dest, const char *source, size_t sourcelen, int linebreaks);
405 int CtdlDecodeBase64(char *dest, const char *source, size_t length);
406 unsigned int decode_hex(char *Source);
407 int CtdlDecodeQuotedPrintable(char *decoded, char *encoded, int sourcelen);
408 void StripSlashes(char *Dir, int TrailingSlash);
409 size_t striplt(char *);
410 int haschar(const char *st, int ch);
411 void remove_token(char *source, int parmnum, char separator);
412 void fmt_date(char *buf, size_t n, time_t thetime, int seconds);
413 int is_msg_in_sequence_set(const char *mset, long msgnum);
414 char *memreadline(char *start, char *buf, int maxlen);
415 char *memreadlinelen(char *start, char *buf, int maxlen, int *retlen);
416 const char *cmemreadline(const char *start, char *buf, int maxlen);
417 const char *cmemreadlinelen(const char *start, char *buf, int maxlen, int *retlen);
418 #define IsEmptyStr(a) ((a)[0] == '\0')
419 #define num_parms(source) num_tokens(source,(char)'|')
420 int stripout(char *str, char leftboundary, char rightboundary);
421 long stripallbut(char *str, char leftboundary, char rightboundary);
422 char *myfgets(char *s, int size, FILE *stream);
423 void urlesc(char *outbuf, size_t oblen, char *strbuf);
424 char *CtdlTempFileName(char *prefix1, int prefix2);
425 FILE *CtdlTempFile(void);
426 void generate_uuid(char *buf);
427 char *bmstrcasestr(char *text, const char *pattern);
428 char *bmstrcasestr_len(char *text, size_t textlen, const char *pattern, size_t patlen);
429 const char *cbmstrcasestr(const char *text, const char *pattern);
430 const char *cbmstrcasestr_len(const char *text, size_t textlen, const char *pattern, size_t patlen);
431 void CtdlMakeTempFileName(char *name, int len);
432 char *rfc2047encode(char *line, long length);
433 int is_msg_in_mset(const char *mset, long msgnum);
434 int pattern2(char *search, char *patn);
435 void stripltlen(char *, int *);
436 char *html_to_ascii(const char *inputmsg, int msglen, int screenwidth, int do_citaformat);
437 void LoadEntityList(char *FileName);
443 #define CTDL_VCARD_MAGIC 0xa1f9
445 /* This data structure represents a vCard object currently in memory. */
456 struct vCard *vcard_new(void);
457 void vcard_add_prop(struct vCard *v, char *propname, char *propvalue);
458 struct vCard *vcard_load(char *vtext);
459 struct vCard *VCardLoad(StrBuf *vbtext);
461 void vcard_free(struct vCard *);
462 void vcard_set_prop(struct vCard *v, char *name, char *value, int append);
463 char *vcard_get_prop(struct vCard *v, char *propname, int is_partial,
464 int instance, int return_propname);
465 char *vcard_serialize(struct vCard *);
466 void vcard_fn_to_n(char *vname, char *n, size_t vname_size);
467 void remove_charset_attribute(char *strbuf);
468 long StrBufUnescape(StrBuf *Buf, int StripBlanks);
471 * Hash list implementation for Citadel
473 #define HKEY(a) a, (sizeof(a) - 1)
475 typedef struct HashList HashList;
477 typedef struct HashKey HashKey;
479 typedef struct HashPos HashPos;
481 typedef void (*DeleteHashDataFunc)(void * Data);
482 typedef const char *(*PrintHashContent)(void * Data);
483 typedef int (*CompareFunc)(const void* Item1, const void*Item2);
484 typedef long (*HashFunc)(const char *Str, long Len);
485 typedef void (*TransitionFunc) (void *Item1, void *Item2, int Odd);
486 typedef void (*PrintHashDataFunc) (const char *Key, void *Item, int Odd);
488 long Flathash(const char *str, long len);
489 long lFlathash(const char *str, long len);
490 #define IKEY(a) (const char*) &a, sizeof(a)
491 #define LKEY(a) (const char*) &a, sizeof(a)
493 int TestValidateHash(HashList *TestHash);
495 HashList *NewHash(int Uniq, HashFunc F);
496 void DeleteHash(HashList **Hash);
497 void DeleteHashContent(HashList **Hash);
498 void HDeleteHash(void *vHash);
499 int GetHash(HashList *Hash, const char *HKey, long HKLen, void **Data);
500 void Put(HashList *Hash, const char *HKey, long HKLen, void *Data, DeleteHashDataFunc DeleteIt);
501 int GetKey(HashList *Hash, char *HKey, long HKLen, void **Data);
502 int GetHashKeys(HashList *Hash, char ***List);
503 int dbg_PrintHash(HashList *Hash, PrintHashContent first, PrintHashContent Second);
504 int PrintHash(HashList *Hash, TransitionFunc Trans, PrintHashDataFunc PrintEntry);
505 HashPos *GetNewHashPos(HashList *Hash, int StepWidth);
506 int GetHashPosFromKey(HashList *Hash, const char *HKey, long HKLen, HashPos *At);
507 int DeleteEntryFromHash(HashList *Hash, HashPos *At);
508 int GetHashPosCounter(HashList *Hash, HashPos *At);
509 void DeleteHashPos(HashPos **DelMe);
510 int NextHashPos(HashList *Hash, HashPos *At);
511 int GetHashPos(HashList *Hash, HashPos *At, long *HKLen, const char **HashKey, void **Data);
512 int GetNextHashPos(HashList *Hash, HashPos *At, long *HKLen, const char **HashKey, void **Data);
513 int GetHashAt(HashList *Hash,long At, long *HKLen, const char **HashKey, void **Data);
514 void SortByHashKey(HashList *Hash, int Order);
515 void SortByHashKeyStr(HashList *Hash);
516 int GetCount(HashList *Hash);
517 const void *GetSearchPayload(const void *HashVoid);
518 void SortByPayload(HashList *Hash, CompareFunc SortBy);
519 void reference_free_handler(void *ptr);
520 int HashLittle(const void *key, size_t length);
522 typedef struct MSet MSet;
523 int ParseMSet(MSet **MsetList, StrBuf *MSetStr);
524 int IsInMSetList(MSet *MSetList, long MsgNo);
525 void DeleteMSet(MSet **FreeMe);
527 void convert_spaces_to_underscores(char *str);
528 int CheckEncode(const char *pch, long len, const char *pche);
531 * Convert 4 bytes char into an Integer.
532 * usefull for easy inexpensive hashing
533 * of for char strings.
535 #define CHAR4TO_INT(a) ((int) (a[0] | (a[1]<<8) | (a[2]<<16) | (a[3]<<24)))
537 /* vNote implementation */
539 #define CTDL_VNOTE_MAGIC 0xa1fa
557 struct vnote *vnote_new(void);
558 struct vnote *vnote_new_from_str(char *s);
559 void vnote_free(struct vnote *v);
560 char *vnote_serialize(struct vnote *v);
561 void vnote_serialize_output_field(char *append_to, char *field, char *label);
567 * Create JSON style structures in C plus serialize them to one string
570 typedef struct JsonValue JsonValue;
573 void DeleteJSONValue(void *vJsonValue);
575 JsonValue *NewJsonObject(const char *Key, long keylen);
577 JsonValue *NewJsonArray(const char *Key, long keylen);
579 JsonValue *NewJsonNumber(const char *Key, long keylen, long Number);
581 JsonValue *NewJsonBigNumber(const char *Key, long keylen, double Number);
583 JsonValue *NewJsonString(const char *Key, long keylen, StrBuf *CopyMe);
585 JsonValue *NewJsonPlainString(const char *Key, long keylen, const char *CopyMe, long len);
587 JsonValue *NewJsonNull(const char *Key, long keylen);
589 JsonValue *NewJsonBool(const char *Key, long keylen, int value);
591 void JsonArrayAppend(JsonValue *Array, JsonValue *Val);
593 void JsonObjectAppend(JsonValue *Array, JsonValue *Val);
595 void SerializeJson(StrBuf *Target, JsonValue *Val, int FreeVal);
600 * Citadels Wildfire implementation, see
601 * http://www.firephp.org/Wiki/Reference/Protocol
602 * and http://wildfirehq.org/ for details
604 typedef void (*AddHeaderFunc)(const char *HdrName, const char *HdrValue);
606 typedef enum _WF_MessageType {
615 JsonValue *WildFireException(const char *Filename, long FileLen,
620 void WildFireAddArray(JsonValue *ReportBase, JsonValue *Array, WF_MessageType Type);
622 JsonValue *WildFireMessagePlain(const char *Filename, long fnlen,
624 const char *Message, long len,
625 WF_MessageType Type);
627 JsonValue *WildFireMessage(const char *Filename, long fnlen,
630 WF_MessageType Type);
632 void WildFireInitBacktrace(const char *argvNull, int AddBaseFrameSkip);
634 void WildFireSerializePayload(StrBuf *JsonBuffer, StrBuf *OutBuf, int *MsgCount, AddHeaderFunc AddHdr);
637 #define WF_STRUCTINDEX "1"
640 extern ConstStr RoomNetCfgStrs[maxRoomNetCfg];
642 /* Convenience function to "perform a function and cut a log record if result != 0" */
643 #define CtdlLogResult(x) if (x) syslog(LOG_CRIT, "%s:%d %s", __FILE__, __LINE__, strerror(errno))
645 /* a nice consistent place to define how we turn a message id into a thread id hash */
646 #define ThreadIdHash(Buf) abs(HashLittle(ChrPtr(Buf), StrLength(Buf)))
649 #endif // LIBCITADEL_H